The Mentor (1965-2001) was a science fiction fanzine by Ron Clarke published in NSW, Australia.

Issues No. 1-23 of The Mentor, which were published from 1965 till 1973, were edited and published by Ron Clarke, before reappearing in 1978, also as The Mentor for issues No. 24-95, which ran from 1978 till 2001.

The Mentor featured the regular columns "Grimesish Grumberlings" by A. Bertram Chandler; "The Yankee Privateer" by Buck Couslson, editor of Yandro, and a column by Mae Streklov.